Hi, I’d like to have the option to isolate my ESS from grid when grid is not required get or inject energy.
This would solve the marginal but constant grid consumption or injection a little above or under 0, which is always present when inverter is in “ON” mode. Of course, toogling on “ON” mode would be trigerred when DESS needs to get energy or inject energy from / to grid.
What do you think ?
(I couldn’t find a way to acheive this through Node-red, as I couldn’t find DESS intentions exposed)
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That would be very nice. Ignoring ACin would be even better. (Opening the relays.)
Yes, why not… Could you explain the difference between ignoring AC in and inverter mode ?
Hi
I actually use Node Red to control the MP2 mode, and switches to “Inverter Only” when appropriate to stop any marginal but constant grid in/out (I am using ESS, but not DESS).
Node is the VEBus System Control one, selecting the Multiplus, then the Switch Position setting as “Measurement” field.
The difference between ACinIgnore & “inverter only” are a bit technical and I am not exactly the best person to explain (I understood they do not act on the same internal relays), but at the end, they achieve the same regarding the need to “disconnect” from grid.
However, a big difference is that “inverter only” can be controlled from Node Red, while “AC Ignore” needs to go through the less flexible VE Config way. So “inverter only” is a suitable way 
Note: one interesting thing with inverter only is that even if “disconnected” from ACin, the Multiplus still probe the voltage on ACIn (which I use to monitor potential grid shutdown, to send me a warning). Unsure the ACInIgnore would allow to keep this voltage monitoring on ACIN.
Matt
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Any chance you could share your flow somehow? I’m also in the process of putting together such an algorithm on node-RED, and I am currently struggling with A.I.-supported programming…